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Physiology III
Neuroscience
Cranial Nerves for Exam 1

Nerve and #

Exit location

Peripheral Structure 
it innervates

Sensory
Motor
Mixed

Nucleus and location

V
Trigeminal

Pons

Sensory – face, meninges
Motor – jaw movements

Mixed

Trigeminal motor – pons
Spinal nucleus – midbrain, pons and medulla

VII
Facial

Pons

Sensory – Taste, skin of external ear
Motor – Muscles of facial expression, lacrimal glands

Mixed

Spinal nucleus of V(trigeminal) –pons
Superior salvitory nucleus –pons
Solitary

VIII
Vestibulocochlear

Pons

Sensory – Inner ear, balance, hearing

Sensory

Vestibular –pons, medulla
Cochlear – pons, medulla

IX
Glossopharyngeal

Medulla

Sensory – ear, meninges, pharynx, inner ear, carotid bodies and sinus, taste, post. Tongue
Motor – parotid gland, pharynx

Mixed

Inf. Salvitory nucleus – pons
Solitary- medulla
Trigeminal – midbrain, pons and medulla
Ambiguous
Spinal nucleus of V

X
Vagus

Medulla

Sensory – skin or ear, meninges, aortic arch, larynx, trachea, gut, post taste buds
Motor – gut to proximal colon, palate, pharynx, larynx

Mixed

Dorsal motor
Solitary – medulla
Ambiguous
Trigeminal
Spinal nucleus of V

XI
Spinal accessory

Medulla

Motor – Sternocleidomastoid, trapezius

Motor

Ambiguous
Spinal accessory – caudal medulla and spinal cord

XII
Hypoglossal

Medulla

Motor – Tongue

Motor

Hypoglossal - medulla


Last Updated 04/10/00 12:27:14 PM
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